<!DOCTYPE html>
<meta charset="utf-8">
<title>Test for ScreenOrientation API</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="orientationcommon.js"></script>
<div id="log"></div>
<script>
async_test(function(t) {
  var originalOrientation = screen.orientation.type;
  var alternateOrientation = originalOrientation == "portrait-primary" ?
    "landscape-primary" : "portrait-primary";
  var p = specialPowersLock(alternateOrientation);
  p.then(function() {
    t.step(function() { assert_equals(screen.orientation.type, alternateOrientation); });
    return specialPowersLock(originalOrientation);
  }).then(function() {
    t.step(function() { assert_equals(screen.orientation.type, originalOrientation); });
    return specialPowersUnlock();
  }).then(function() {
    t.done();
  }).catch(t.step_func(function(err) {
    assert_unreached("Error setting orientation: " + err);
    t.done();
  }));
}, "Test locking and unlocking orientation.");
</script>
